Alert archive / Texas / Red Flag Warnings in 2022

Red Flag Warning 3, NWS Houston/Galveston, TX

April 6, 202223 counties in Texas

NWS Houston/Galveston, TX issued this red flag warning at Apr 6, 2022, 3:21 PM CDT for 23 counties in Texas. It took effect at Apr 7, 2022, 10:00 AM CDT. It was in force for 9 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Apr 6, 2022, 3:21 PM CDT (20:21 UTC)
In effect from: Apr 7, 2022, 10:00 AM CDT
Expired: Apr 7, 2022, 7:00 PM CDT
In force: 9 hr
Issued by: NWS Houston/Galveston, TX

All 23 counties

Austin County, TX, Brazoria County, TX, Brazos County, TX, Burleson County, TX, Chambers County, TX, Colorado County, TX, Fort Bend County, TX, Galveston County, TX, Grimes County, TX, Harris County, TX, Houston County, TX, Jackson County, TX, Liberty County, TX, Madison County, TX, Matagorda County, TX, Montgomery County, TX, Polk County, TX, San Jacinto County, TX, Trinity County, TX, Walker County, TX, Waller County, TX, Washington County, TX, Wharton County, TX

The radar

The Houston radar (KHGX), 91 km from the middle of the area, began a volume at 20:19 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Lake Charles Mun, LA (KLCH), launched 12:00Z, 8.4 hours before the alert went out and 242 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 2393 J/kg
Mixed-layer CIN: -112 J/kg
Mixed-layer LCL: 474 m above ground
0-6 km bulk shear: 22 kt
0-1 km storm-relative helicity: 31 m²/s²
0-3 km storm-relative helicity: 61 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.7

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this red flag warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Houston/Galveston, TX wrote its last area forecast discussion before this red flag warning went out at Apr 5, 3:28 PM CDT, 23 hours 53 minutes earlier.

Area forecast discussion, Apr 5, 3:28 PM CDT, 23 hours 53 minutes before

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The office that day

Everything else NWS Houston/Galveston, TX issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Apr 5, 10:49 PM CDT	Marine Dense Fog Advisory	HGX		13 hr
Apr 6, 3:43 AM CDT	Dense Fog Advisory	HGX	Brazoria, Chambers, Galveston	5 hr
Apr 6, 3:43 AM CDT	Wind Advisory	HGX	Austin, Brazoria, Brazos, Burleson, Colorado, Fort Bend and 9 more	15 hr
Apr 6, 4:34 AM CDT	Small Craft Advisory	HGX		43 hr
Apr 6, 4:58 AM CDT	Fire Weather Watch	HGX	Austin, Brazoria, Brazos, Burleson, Colorado, Fort Bend and 11 more	10 hr

Nearby

Red Flag Warnings in Texas, 2022 Every red flag warning in 2022

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.